Improvement in sand-pumps



UNITED STATES PATENT EEIcE.

JAMES BENSON, OF BELLAIBE, OHIO.

IMPROVEMENT IN SAND-PUMPS.

Specification forming part of Letters Patent No. 58,5749, dated October 9, 1866.

sucker or piston.

Similar letters ot' reference indicate corresponding parts.

The object of this invention is to construct a pump for removing sand, mud, and reduced rock from an oil or other deep well. The body ot' the pump is of such a size as to pass easily into the bore of a well. rlhe piston-rod has a loop made in it, through which passes the bail ofthe pump. The length of the loop determines the stroke of the piston. When the piston is to be removed from the pump, the bail, which is hinged at one end and secured by a removable pin at the other, is swung open out ofthe loop, when the piston can be drawn up out of the box or body ofthe pump.

The letter A designates the body orv box of the pump. The upper part of the pump is square to receive the piston, and the lower part has feet B to keep it from sitting too vnear the bottom when lowered. The upper part ofthe pump has onutwo of its sideslugs H. I-I, to one of which is hinged a bail, I, which is connected to the other lug by a pin, J, which can be removed at pleasure. O is the lower or lixed valve of the pump. E is the piston-rod, to whose lower end is attached an ordinary bucket-valve, D, with straight sides, which, when expanded, meet the sides of the pump-box. The sides ot the valve are connected to the piston by straps F in the ordinary way of making such valves. The upper end of the piston-rod is formed with a loop, F', whose top and bottom form shoulders g g, which strike against the bail I in the working ofthe pump. The bail I is inserted in the loop when the pistolrrod is drawn to its full extent upward, and is fastened to the lug H by the pin J.

When the pump is full and it is desired to empty it, it is drawn out ofthe well by its bail, the piston-rod is drawn up to its full height, the pin J is taken out, the bail thrown backward out of the loop in the piston-rod, when the piston can be removed and the pump emptied.

That part of the piston-rod which contains the loop is ina-de of metal, while the part to which the valve is fastened is of wood.

The bail holds the pump while it is lowered into a well or raised therefrom.

The piston is worked up and down by a rope fastened to its top, the shoulders g g in its loop striking against the bail, which thus limits the extent of its motion and prevents it from working out of the pump-box.

The weight of the metallic portion of the piston-rod will sulice to sink the piston in the purnp after each elevation.

The pump can be made of any length or diameter to suit the well for which it is provided.

I claim as new and desire to secure by Let ters Patent- The hinged bail I, operating in combina tion with the linked piston-rod E of the sandpump herein described, as and for the purpose specified.

y JAMES BENSON.

Witnesses:

JAMES McGREcoR, Jr., MAHLON CRAFT. 

